The TD001GZ02 is a compact, cordless Impact Driver, powered by 40V Li-ion XGT battery to supply energy to the powerful 40V brushless motor, with variable speed controlled by trigger & constant speed control, to deliver up to 4, 400 ipm, 3, 700 rpm & 220 Nm maximum tightening torque for a wide range of tightening applications. The TD001GZ02, designed for heavy duty, continuous tightening, is equipped with a 1/4” hex driving shank, conveniently located forward/reverse rotation switch, enhanced anvil holder rigidity, one touch speed selector to provide more precise fastening in a wide range of applications & one touch bit installation. The TD001GZ02 features 4 speed power selection plus 6 Assist Modes; 2 T-Modes, 1 Wood Mode & 3 Bolt Modes. Machine screw capacity M4 to M8, standard bolt M5 to M16, high strength bolt M5 to M14 & coarse thread screw 22 to 125mm.